摘要:
The present invention provides a method for preparing an inorganic crystalline ceramic material having an organized structure, comprising the steps of: (a) providing nanoparticles of one or more inorganic crystalline ceramic materials; (b) reacting metal hydroxide groups that are present on the nanoparticles with molecules of a chemical compound which molecules each comprisea first and a second reactive moiety, whereby a covalent bond is formed between the first reactive moieties of the molecules and the respective metal hydroxide groups; and (c) subjecting the nanoparticles obtained in step (b) to a treatment which enables the formation of a bond between at least two nanoparticles, whereby the bond is formed directly or indirectly between the second reactive moieties of the covalenty bonded molecules of the chemical compound as obtained in step (b), thereby forming an organized structure.
摘要:
The invention is directed to copy protected paper, to a method for producing said paper, the use of a specific layer for copy protection of paper, and a method for protecting a printable paper from being copied. Copy protected paper comprising a printable paper having, on a side to be printed or a printed side, a first transparent layer, wherein said first transparent layer has a difference in refractive index with i) said paper; or ii) an optional second transparent layer being provided on said paper on the side to be printed or the printed side, wherein said difference in refractive index is at least 0.05.
摘要:
The invention provides a coating composition comprising a sol-gel matrix which comprises a binder and nanoparticles of a metal oxide, and nanoparticles and/or microparticles of a layered inorganic filler. In addition, the invention provides a process for preparing said coating composition. Moreover, the invention relates to the use of said-coating in an antifouling paint, fouling-release paint or in a biomedical and hygienic application. Further, the invention provides an antifouling paint or a fouling-release paint and a medical device comprising said coating composition.